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3 years ago

Solve this system by substitution, y = 4x + 12. -3x + 2y = 4

Mathematics

1 answer:

asambeis [7]3 years ago

8 0

Step-by-step explanation:

in equation 1

y=4x+12

so now

eqs 2

2y=4+3x

then

-y=x+8

y= -x-8

-x-8=4x+12

-20=5x

-4=x

y= 4-8

y=-4

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Define acute, right angle, obtuse, straight angle, reflex

vova2212 [387]

Answer: here

Step-by-step explanation:

Acute Angle - An angle less than 90 degrees. Right Angle - An angle that is exactly 90 degrees. Obtuse Angle - An angle more than 90 degrees and less than 180 degrees. Straight Angle - An angle that is exactly 180 degrees. Reflex Angle - An angle greater than 180 degrees and less than 360 degrees.

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3 years ago

Read 2 more answers

What is the order of the steps to solve for x in the equation 3x - 6x - 7 = 29?

Anna35 [415]

Answer:

3x - 6x - 7 = 29 Given

-----------------------------------

3x - 6x -7 = 29

+ 7 + 7 Addition property of equality

3x - 6x = 36

--------------------------------------------------------------

3x - 6x = 36

(3x + -6x) = 36 Combine like terms

-3x = 36

--------------------------------------------------------------

-3x = 36

(-3x = 36)/ -3 Division property of equality

x = -12

Step-by-step explanation:

I tried to seperate the steps so you can go through them. First you had to add on both sides to take out the like terms, then combine the 3x and the -6x to make -3x (easier to look at and divide), and finally divide to find X. the end product using X cannot be a negative because its a filler space for a real number.

Hope this helps :)

8 0

4 years ago

Find all the zeros of the polynomial function. x^3 + 2x^2 -5x-6 f(x) a) (-3) b) (-2, 1, 3 c) (-3, -1, 2) d) -1) e) none

Flauer [41]

Answer:1,2,3

Step-by-step explanation:

F(x)= $x^{3}$ +2 $x^2$ - $5x$ - $6$ =0